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Quartz from
Della Costa Quarry, Porretta quartz sites, Porretta Terme, Alto Reno Terme, Reno Valley, Bologna Province, Emilia-Romagna, Italy

Classification
Species:Quartz
Formula:SiO2
Quality for species:Excellent - world class for species or very significant. (!!)
Confirmation
Validity:Believed Valid
References
References:Bombicci, L. (1874) Descrizione della mineralogia generale della provincia di Bologna. Seconda parte. Memorie della R. Accademia delle Scienze dell'Istituto di Bologna, serie 3, 5, 105-222; De Michele, V. (1974) Guida mineralogica d'Italia. Istituto Geografico De Agostini, Novara, 2 vol., 408 pp.
Data
Mineral Data:Click here to view Quartz data
Locality Data:Click here to view Della Costa Quarry, Porretta quartz sites, Porretta Terme, Alto Reno Terme, Reno Valley, Bologna Province, Emilia-Romagna, Italy
Nearest other occurrences of Quartz
0.2km (0.1 miles) A Porettana Railway tunnels and cuts, Porretta quartz sites, Porretta Terme, Alto Reno Terme, Reno Valley, Bologna Province, Emilia-Romagna, Italy
0.4km (0.3 miles) B Madonna del Ponte Quarry, Castel di Casio, Bologna Province, Emilia-Romagna, Italy
2.5km (1.6 miles) C Lizzo, Castel di Casio, Bologna Province, Emilia-Romagna, Italy
4.4km (2.7 miles) D Fosso di Corsicino, Gaggio Montano, Reno Valley, Bologna Province, Emilia-Romagna, Italy
5.5km (3.4 miles) E Ca' dei Ladri (Silla), Gaggio Montano, Reno Valley, Bologna Province, Emilia-Romagna, Italy
7.0km (4.3 miles) F Bombiana, Gaggio Montano, Reno Valley, Bologna Province, Emilia-Romagna, Italy
9.9km (6.1 miles) G Tramonte, Limentra valley, Bologna province, Emilia-Romagna, Italy
11.0km (6.9 miles) H Aneva creek, Pietracolora (Pietra Colora), Gaggio Montano, Reno Valley, Bologna Province, Emilia-Romagna, Italy
39.8km (24.7 miles) I Rio Stancalasse, Monterenzio, Sillaro Valley, Bologna Province, Emilia-Romagna, Italy
41.0km (25.5 miles) J Rio Poggioli, San Clemente, Monterenzio, Sillaro Valley, Bologna Province, Emilia-Romagna, Italy
41.1km (25.5 miles) K Rio delle Ossa, San Clemente, Monterenzio, Sillaro Valley, Bologna Province, Emilia-Romagna, Italy
51.3km (31.9 miles) L Cava del Ferro (Bùgie mines; Trimpello), Fornovolasco, Vergemoli, Apuan Alps, Lucca Province, Tuscany, Italy
53.1km (33.0 miles) M Piana del Sale, Ligonchio, Reggio Emilia Province (Reggio nell'Emilia Province), Emilia-Romagna, Italy
54.8km (34.0 miles) N Monte Serra (Cascetto-Costa Moriglione quartz veins system), Calci, Monti Pisani, Pisa Province, Tuscany, Italy
57.0km (35.4 miles) O Levigliani mine, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy
57.3km (35.6 miles) P Buca della Vena Mine, Ponte Stazzemese, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy
57.3km (35.6 miles) Q Eremo di San Viano, Vagli di Sotto, Apuan Alps, Lucca Province, Tuscany, Italy
57.5km (35.7 miles) R Castagnola, Vagli di Sotto, Apuan Alps, Lucca Province, Tuscany, Italy
58.4km (36.3 miles) S Arnetola Valley, Vagli di Sotto, Apuan Alps, Lucca Province, Tuscany, Italy
59.3km (36.8 miles) T Monte Arsiccio Mine, Sant'Anna di Stazzema, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy
60.3km (37.4 miles) U Bottino Mine, Stazzema, Apuan Alps, Lucca Province, Tuscany, Italy
61.2km (38.0 miles) V Pollone Mine, Valdicastello Carducci, Pietrasanta, Apuan Alps, Lucca Province, Tuscany, Italy
63.7km (39.6 miles) W Seravezza Quarries, Seravezza, Apuan Alps, Lucca Province, Tuscany, Italy
67.9km (42.2 miles) X Ravaccione quarry, Torano quarrying basin, Carrara, Apuan Alps, Massa-Carrara Province, Tuscany, Italy
77.3km (48.0 miles) Y Cetine di Camporbiano Mine (Le Cetine; Cetine di Volterra; Cetine di Gambassi), Podere Giuseppe, Gambassi Terme, Florence Province, Tuscany, Italy
83.6km (52.0 miles) Z Fosce creek, Orciatico, Lajatico, Pisa Province, Tuscany, Italy
89.4km (55.6 miles) 0 Antignano, Livorno, Livorno Province, Tuscany, Italy
91.1km (56.6 miles) 1 Fortullino, Rosignano Marittimo, Livorno Province, Tuscany, Italy
92.9km (57.7 miles) 2 Speranza Stope, Corchia mine, Berceto, Parma Province, Emilia-Romagna, Italy
97.8km (60.7 miles) 3 Ligurian Sea to the SW of Portovenere Promontory, La Spezia Province, Liguria, Italy
98.1km (61.0 miles) 4 Monte Nero Mine, Rocchetta Vara, La Spezia Province, Liguria, Italy
99.1km (61.6 miles) 5 Case Montanini quarry, Sant'Andrea Bagni, Medesano, Parma Province, Emilia-Romagna, Italy
101.6km (63.1 miles) 6 Le Cetine di Cotorniano Mine (Le Cetine Mine; Cetine Mine; Rosia), Chiusdino, Siena Province, Tuscany, Italy
102.2km (63.5 miles) 7 Cerchiara Mine, Borghetto Vara, Vara Valley, La Spezia Province, Liguria, Italy
102.3km (63.6 miles) 8 Larderello, Pomarance, Pisa Province, Tuscany, Italy
112.8km (70.1 miles) 9 Bardi, Ceno Valley, Taro Valley, Parma Province, Emilia-Romagna, Italy
Mineral and/or Locality  
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